Re: libusbk filter driver on win7 x64bit

Hello,
     I am very sorry. In the last mail, *UsbK_IsoWritePipe * error code is
87 (the parameter is incorrect), not 1168. Could you help me to solve the
problem? Thanks.

Best Regards,
Shang Jing

2016-02-26 11:05 GMT+08:00 若水 <[email protected]>:

> Hello,
>       I have an USB Audio device (win7 x64bit system). It uses system
> internal driver (usbaudio.sys) and works well.
>       Now, I need to add some new functions. I tried to install libusbk
> driver and run my new functions program. The new functions work well. But
> there is a problem, after I installed libusbk driver, the device will NOT
> be an USB Audio device. In order to solve the problem, I have to uninstall
> the libusbk driver and install libusbk FILTER driver. At that time, the USB
> Audio device works well. However, the new functions program cannot work. I
> debugged new functions program and found that *UsbK_IsoWritePipe* failed.
> The error code is 1168 (Element not found). Could you give me some
> instructions to solve the problems? Thanks.
>
> Best Regards,
> Shang Jing
>

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